Feature: 1. 5.8 GHz ISM band. 2. The transmission range of 1000 feet without any hindrance. 3. 8 groups of selectable channels. 4. 5.8GHz wireless transmission technology to avoid interference from other wireless devices. 5. The display indicates the selected channel. 6. Support 1 set of AV signal inputoutput. 7. Supports 1 transmitter and multiple receivers while maintaining the transmitter and receiver settings in the same channel. 8. Support any AV output device, VCD, DVD, IPTV, DVR, satellite receiver, CCTV camera digital set-top box, etc. 9. Support PAL NTSC system and stereo audio transmission. 10. No need to install any software, no settings, plug and play. Product specifications: 1. Type: Wireless. 2. Frequency band: 5.8 GHz. 3. System: PAL NTSC. 4. Interface: RCA (AV). 5. Transmission distance: less than 300m. 6. Sensitivity: -90dBm. 7. Transmission power: 50mW. 8. Shell material: aluminum. 9. Power input: 5V 1000mA. 10. Operating temperature: 32-104 degrees Fahrenheit 0-40 degrees Celsius. 11. Storage temperature: -4-140 degrees Fahrenheit 20-60 degrees Celsius. 12. Humidity: 20-90RH. 13. Net weight: 560g. 14. Product size: 10x10x2.7cm. Packing list: Transmitter x 1 AV cable x 1 Power adapter x 1 Instruction manual x 1 Wall-mounted kit x 1 Receiver x 2